#VU91668 Integer underflow in Linux kernel - CVE-2023-52671
Published: June 10, 2024 / Updated: May 13, 2025
Vulnerability identifier: #VU91668
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2023-52671
CWE-ID: CWE-191
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local user to execute arbitrary code.
The vulnerability exists due to integer underflow within the optc32_disable_crtc() function in drivers/gpu/drm/amd/display/dc/dcn32/dcn32_optc.c. A local user can execute arbitrary code.
Remediation
Install update from vendor's website.
External links
- https://git.kernel.org/stable/c/ae62f1dde66a6f0eee98defc4c7a346bd5acd239
- https://git.kernel.org/stable/c/4b6b479b2da6badff099b2e3abf0248936eefbf5
- https://git.kernel.org/stable/c/e7b2b108cdeab76a7e7324459e50b0c1214c0386
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.24
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7.3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.8